Popemobile

Why does one of the more powerful religious figures on the planet require a popemobile? That was a rhetorical question obviously. And it certainly has nothing to do with the fact that all popes are required to be old and decrepit before assuming that role and need help getting from their walker to inside the popemobile. The very being that created the vastness of the universe seems indifferent, uninterested, or probably, unable to stop a papal speeding bullet. Hell, even Superman can do that.